Nyx - What is it?

Creation of the Gods

Through mass collective hope and imagination, the mortals dreampt of all-powerful gods who would save them from the Titans, all they had to do was believe their prayers were being heard.

Theros possesses a unique metaphysical property: things believed and dreamed here eventually become real. The collective unconscious of mortal people has the literal power of creation, though the process unfolds over the course of countless centuries. Thus, the gods of Theros and their servants were believed, dreamed, and narrated into existence, materializing and becoming fully real as a result of mortal belief in their power. As stories were told, sacrifices made, and devotion given over ages, the gods formed and gained lives just as real as the mortals who dreamed them into being.

Does that mean that the gods of Theros are less powerful or less divine than the gods of other worlds? Not at all. Once a dream or belief in Theros becomes reality, it is just as real as any other thing, and the gods have been real for a very long time. The people of Theros believe them to be divine, ageless, and all-powerful, and therefore they are.

A single individual can’t do anything to make the gods less real or change the nature of a god. Threatened with the wrath of Heliod, for example, a mortal can’t simply “disbelieve” the god out of existence or turn his wrath to kindness. It’s the collective unconscious of every sapient being on Theros that shapes reality, and changes to that reality occur on the scale of ages, not moments.

In practical terms, then, the gods of Theros are no less real, powerful, or important to Theros than the gods of other worlds are to those worlds. Notably, though, these gods have influence only over Theros and the two planes connected to it: Nyx, the starry realm of the gods, and the Underworld, eventual home of all those who die.